文档介绍：天津职业技术师范大学
Tianjin University of Technology and Education
毕业设计
专业: 自动化
班级学号: 自0902-11
学生姓名: 林建平
指导教师: 韩春晓教授
二〇壹叁年六月
天津职业技术师范大学本科生毕业设计
滑模控制永磁同步电动机调速系统
Sliding Mode Control for PMSM Drive System
专业班级:自0902
学生姓名:林建平
指导教师:韩春晓教授
学院:自动化学院
2013年 6月
摘要
对于转子直流励磁的同步电动机,若采用永磁体取代其转子直流绕组则相应的同步电动机就成为永磁同步电动机。而永磁同步电动机具有结构简单,体积小、重量轻、损耗小、效率高、功率因数高等优点,主要用于要求响应快速、调速范围宽、定位准确的高性能伺服传动系统和直流电机的更新替代电机。由于永磁同步电动机对内部振动很敏感,所以引入了滑模变结构控制控制策略(SMC)以提高系统的鲁棒性。本文给出了一种变参数SMC方法,对SMC控制器进行设计并对其仿真和实验研究,该方案设计的SMC控制器表达式和PI控制一样简单,结果证明所设计的SMC控制器能有效的提高系统的鲁棒性和动态性。
关键词:PI控制;永磁同步电动机;SMC控制;鲁棒性
ABSTRACT
For synchronous motor rotor DC excitation, synchronous motor with permanent rotor if replaced the DC winding corresponding es the permanent synchronous motor. The permanent synchronous motor has the advantages of simple structure, small volume, light weight, low loss, high efficiency, high power factor, advantages, mainly for fast response, wide speed range, accurate positioning and high performance servo drive system and DC substitute motor. Permanent synchronous motor is very sensitive to the vibration, so the sliding mode variable structure control strategy (SMC) to improve the robustness of the system. This paper presents a method of variable parameters SMC, SMC controller is designed and the simulation and experimental study on SMC expression and PI controller, control the design as simple, results show that the designed SMC controller can improve system robustness and dynamic performance effectively.
Key Words:PI control, Permanent synchronous ,Sliding mode control, Robustness
目录
1 引言 1
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1
2
2永磁同步电动机的数学模型和工作原理 4
4
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6
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8
3控制器的设计 11
11
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SMC控制器的设计 14
15
SMC控制器与PI控制器的比较……...............................................................16
4仿真和实验研究